23162216 has 64 divisors (see below), whose sum is σ = 57024000. Its totient is φ = 8544960.

The previous prime is 23162203. The next prime is 23162257. The reversal of 23162216 is 61226132.

It is a junction number, because it is equal to n+sod(n) for n = 23162191 and 23162200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10715 + ... + 12693.

It is an arithmetic number, because the mean of its divisors is an integer number (891000).

Almost surely, 2^23162216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23162216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28512000).

23162216 is an abundant number, since it is smaller than the sum of its proper divisors (33861784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23162216 is a wasteful number, since it uses less digits than its factorization.

23162216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022 (or 2018 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 23162216 is about 4812.7139952422. The cubic root of 23162216 is about 285.0537130731.

Adding to 23162216 its reverse (61226132), we get a palindrome (84388348).

The spelling of 23162216 in words is "twenty-three million, one hundred sixty-two thousand, two hundred sixteen".